Hello, syzbot found the following issue on: HEAD commit: 55cb5f43689d Merge tag 'trace-v6.7-rc6' of git://git.kerne.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15291f69e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=e5751b3a2226135d dashboard link: https://syzkaller.appspot.com/bug?extid=f98c5f7049564fe07d91 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/ae263e8abe20/disk-55cb5f43.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/69616b96179e/vmlinux-55cb5f43.xz kernel image: https://storage.googleapis.com/syzbot-assets/7f052dde6379/bzImage-55cb5f43.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f98c5f7049564fe07d91@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 0 PID: 31925 at fs/udf/udfdecl.h:123 udf_updated_lvid fs/udf/udfdecl.h:121 [inline] WARNING: CPU: 0 PID: 31925 at fs/udf/udfdecl.h:123 udf_add_free_space fs/udf/balloc.c:121 [inline] WARNING: CPU: 0 PID: 31925 at fs/udf/udfdecl.h:123 udf_table_free_blocks fs/udf/balloc.c:403 [inline] WARNING: CPU: 0 PID: 31925 at fs/udf/udfdecl.h:123 udf_free_blocks+0x1d59/0x23c0 fs/udf/balloc.c:681 Modules linked in: CPU: 0 PID: 31925 Comm: syz-executor.3 Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:udf_updated_lvid fs/udf/udfdecl.h:121 [inline] RIP: 0010:udf_add_free_space fs/udf/balloc.c:121 [inline] RIP: 0010:udf_table_free_blocks fs/udf/balloc.c:403 [inline] RIP: 0010:udf_free_blocks+0x1d59/0x23c0 fs/udf/balloc.c:681 Code: 00 e8 4b b6 e1 fe 48 8b 9c 24 70 01 00 00 48 85 db 74 07 e8 29 b1 85 fe eb b7 e8 22 b1 85 fe e9 48 e7 ff ff e8 18 b1 85 fe 90 <0f> 0b 90 e9 45 ef ff ff 89 d9 80 e1 07 fe c1 38 c1 0f 8c 70 e3 ff RSP: 0018:ffffc900032575e0 EFLAGS: 00010287 RAX: ffffffff8308b648 RBX: 0000000000000d36 RCX: 0000000000040000 RDX: ffffc90010d7a000 RSI: 0000000000001426 RDI: 0000000000001427 RBP: ffffc900032577f0 R08: ffffffff8308a589 R09: 1ffffffff1e017ad R10: dffffc0000000000 R11: fffffbfff1e017ae R12: ffff888029e898c0 R13: dffffc0000000000 R14: ffff88803f1f701c R15: ffff88807b818000 FS: 00007fb4fbde66c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb4fbde6d58 CR3: 0000000038a3b000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> extent_trunc+0x390/0x4a0 fs/udf/truncate.c:52 udf_truncate_extents+0x627/0x12d0 fs/udf/truncate.c:251 udf_setsize+0x1015/0x1470 fs/udf/inode.c:1293 udf_setattr+0x370/0x540 fs/udf/file.c:235 notify_change+0xb99/0xe60 fs/attr.c:499 do_truncate+0x220/0x300 fs/open.c:66 do_sys_ftruncate+0x2f3/0x390 fs/open.c:194 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fb4fb07cbe9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb4fbde60c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007fb4fb19c050 RCX: 00007fb4fb07cbe9 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000005 RBP: 00007fb4fb0c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fb4fb19c050 R15: 00007ffc4effc388 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
